Mounting attachment means for wrist watches and the like



I F. G. GRUEN I MOUNTING ATTACHMENT MEANS EIOR wRI's'T WATCHES AND THE LIKE I Filed Jul 15, 1921 Patented Mar. 6, 1923.

FREDERICK G. GRUEN,

OF CINCINNATI, OHIO.

MOUNTING ATTACHMENT MEANS FOR WRIST WATCHES AND THE LIKE.

Application filed July 13,

T 0 all whom it may concern:

Be it known that I, FREDERICKG. GRUEN, a citizen of the United States of America, and a resident of Cincinnati, in the county of Hamilton and State of Ohio, have invented a new and useful Improvement in a Mounting Attachment Means for Wrist Watches and the like, of which the following is a specification.

An object of my invention is to provide means to simplify the attaching and detaching of straps, etc., to wrist watches and similar articles. 7

Another object is to provide means for the purpose stated that is simple in construction, assembly and application.

Another object is to provide means that will preclude injury to a wrist watch or similar article when a strap or similar article is applied thereto.

Another object is to provide means that will preclude separation of the strap from the wrist watch.

These and other objects are attained by the means described herein and disclosed in the accompanying drawings, in which Fig. 1 is a plan view of a wrist watch having a device embodying my invention mounted thereupon.

Fig. 2 is an enlarged sectional view on line 2-2 of Fig. 1.

Fig. 3 is an enlarged perspective View of a sleeve forming a detail of my invention.

Fig. i is an enlarged perspective view of a pin forming a detail of my invention.

Fig.5 is a perspective'view of a modified form of sleeve.

Fig. 6 is a perspective view of a modified form of pin.

My invention comprises a pin A having formed in it, intermediate its ends, a circumferential groove a. A sleeve B is adapted to be revolubly mounted upon the pin A and has a series of longitudinal slits 5, whereby a series of segments 6 are formed in the tube intermediate the slits. A radial or centerward extending lug 72 is formed upon each of the segments 1). When the sleeve B is properly mounted upon the pin A, the lugs 12 engage in the circumferential groove a. The pin A is made of suflicient length that the ends thereof extending from the sleeve B will engage in the bores 0 formed in the brackets C extending from the wrist watch case C. A similar pin and 1921. Serial 110.48%446.

sleeve are employed in mounting the buckle D upon the strap E. In this case the buckle D has bores formed at its ends through which the pin A may be passed. The tongue d is mounted upon the sleeve B.

In the device shown in Figs. 5 and 6 the sleeve 9 is provided with slits 7 extending longitudinally of the sleeve, and intermediate the ends of the slits, the sleeve is provided with inwardly projecting lugs 8. The pin 10 is provided with a circumferential groove 11 adapted to accommodate the lugs 8 in the same manner as does the groove a on the pin A accommodate the lugs b on the sleeve B.

The device is applied as follows:

The pin A is removed from the sleeve B by exerting pressure on one of the ends of thepins extending from the sleeve, whereby the segments 6 are swung outwardly and the lugs 19 are disengaged from the groove a, whereupon the pin and the sleeve may be separated. The sleeve is then inserted in the eye e formed in the strap E. The eye e is generally provided by sewing one end of the strap to the next adjacent part of the strap. The sleeve B, with the strap mounted thereupon, is then interposed between the brack ets G. The pin A is then projected through the bores c and through the sleeve B. When the circumferential groove a registers with the lugs 6 the segments 6 functioning as spring members, cause the lugs to snap into the groove and to thereby secure the sleeve upon the pin. The ends of the pin projecting beyond the sleeve provide the bearings mounting the device and the strap E upon the brackets C. The buckle D is secured to the strap E in the same manner. When it is desired to remove the strap E, is it necessary only that a rod, similar to the pin A, be employed to move the pin A longitudinally through the brackets C and the sleeve B so as to unseat the lugs b from the groove a, whereupon the pin may be wholly withdrawn from within the sleeve and the brackets, and the parts he disassembled. The slits may be disposed at various places in the sleeve, such as at the ends or midway between the ends, or if desired, the slits may extend circumferentially of the sleeve at any place thereupon. However, the constructions which I have shown are the simplest, easiest to make and most efficient, and although I prefer to construct the device as shown, the circumferentially slitted construction referredto and explained herein falls within the scope ofmy invention.

What I claim is:

1. An attachment means of the class described comprising the' combination of" spaced brackets having aligned bores, va sleeve interposed between the brackets, spring members formed on the sleeve, lugs mounted on the spring members extending substantially radially centerivard, and a pin extendingthrough the bores in the brackets therein and' extending toward the aXisof the sleeve, and a pin havlng a circumferential groove extending through the sleeve and in the groove of which the lugs are adapted to engage, the portions of" the sleeve intermediate the slits yieldingly seating the lugs in the groove. 1

3. An attachment means comprising a sleeve having longitudinal slits intermediate its ends; radially extending lugs formed on thesleeve intermediate the slitstherein and extending toward the axis ofthesleeve, and a pin having a circumferential groove extending through the sleeve and in the groove of which the lugs are adapted to engage 4-. An attachment means comprising a slit ted sleeve, a lug formed on the sleeve portion adjacent the slit in the sleeve and extending toward the axis of the sleeve, and a pin hav ing a groove extending through the sleeve and in the groove of Which the lug is adapted to engage. 1

In testimony whereof, I havehereunto subscribed my name this 12th day of July,

FREDERICK e. GRUEN. 

